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SEM images: (a) Cryogel of HEMA; (b) Cryogel of HEMA-HNT/Thy; (c) halloysite nanotubes inclusions; (d) halloysite aggregates. (e) EDX analysis of a portion (yellow square) of HEMA-HNT/Thy cryogel. The unlabeled peaks at 2.1 and 9.6 keV correspond to gold, which is used to confer conductivity.
